Sökning: "cell signaling"

Visar resultat 16 - 20 av 1568 avhandlingar innehållade orden cell signaling.

1. 16. Molecular Studies of Mast Cell Migration and Apoptosis : Two Ways of Regulating Mast Cell Numbers at Sites of Inflammation

   Författare :Jessica Alfredsson; Gunnar Nilsson; Hans-Uwe Simon; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pathology; mast cell; SCF; IL-3; FcεRI; migration; apoptosis; Bim; Bcl-2; Bcl-XL; Akt; FOXO; MAPK; Patologi; Pathology; Patologi;

   Sammanfattning : Upon activation mast cells release numerous proinflammatory mediators. With this feature, mast cells play an important role in host defense against pathogens, and are involved in tissue remodeling and wound healing. However, in cases of excessive inflammation the effects of mast cells are detrimental. LÄS MER

3. 17. Cholesterol in T cells : homeostasis, plasma membrane organization and signaling

   Författare :Saleemulla Mahammad; Ingela Parmryd; Thomas Harder; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plasma membrane; T cells; Cholesterol; Lipid rafts; Membrane organization; Cholesterol homeostasis; cholesteryl esters; Cell biology; Cellbiologi; Cell Biology; cellbiologi;

   Sammanfattning : The plasma membrane of eukaryotic cells contains cholesterol and glycosphingolipids enriched nanodomains known as lipid rafts; which are believed to exist in a liquid ordered (lo) state. Methyl-beta-cyclodextrin (MBCD) is used to deplete cellular cholesterol and a widespread assumption is that MBCD preferentially targets cholesterol in lipid rafts. LÄS MER

4. 18. Studies of PDGF receptor signaling in vitro and in vivo

   Författare :Maria Tsioumpekou; Carl-Henrik Heldin; Jean-Baptiste Demoulin; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; PDGF; signaling; cancer; Erk5; kinase; Cbl; ubiquitination; deubiquitinase; pericytes; tumor growth; angiogenesis; low molecular weight inhibitors;

   Sammanfattning : Platelet-derived growth factor receptor (PDGFR) signaling is essential for proliferation, migration and survival of cells of mesenchymal origin; however, its deregulation has been associated with various diseases, including cancer. The aim of this thesis was to clarify the molecular mechanisms of PDGFR signaling regulation. LÄS MER

5. 19. Regulation of Hyaluronan Synthesis and Signaling via CD44 in Cancer

   Författare :Merima Mehić; Paraskevi Heldin; Carl-Henrik Heldin; Liliana Schaefer; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Hyaluronan; CD44; TGFβ; PDGF-BB; cancer; signaling; hyaluronan synthase; epithelial-mesenchymal transition; Biology with specialization in Molecular Biology; Biologi med inriktning mot molekylärbiologi; Medical Science; Medicinsk vetenskap;

   Sammanfattning : Hyaluronan is a ubiquitous glycosaminoglycan which is an important constituent of the extracellular matrix (ECM). In addition to organizing the extracellular matrix and regulating tissue homeostasis, hyaluronan, by binding to its main cell surface receptor CD44, is involved in intracellular signaling pathways regulating major cellular processes during development, wound healing, inflammation and cancer. LÄS MER

7. 20. Application of Proximity Ligation Assay for Multidirectional Studies on Transforming Growth Factor-β Pathway

   Författare :Agata Zieba; Ola Söderberg; Kathleen C. Flanders; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; proximity ligation; TGF-β signaling; Smad; single cell analysis; cell cycle; context-dependent signaling; CRC; Molekylär cellbiologi; Molecular Cellbiology; Medicinal Chemistry; Läkemedelskemi; Molecular Biology; Molekylärbiologi;

   Sammanfattning : A comprehensive understanding of how the body and all its components function is essential when this knowledge is exploited for medical purposes. The achievements in biological and medical research during last decades has provided us with the complete human genome and identified signaling pathways that governs the cellular processes that facilitates the development and maintenance of higher order organisms. LÄS MER